Fig. 6: Interpretation of the various mechanisms that can affect bottom currents in the vicinity of a seamount.
From: In-situ sedimentary evidence of complex bottom currents at a modern deepwater seamount
All mechanisms (A–D) may operate simultaneously. A Regional current variation over yearly-decadal timescales (modified from ARGO float data, Fig. 1), including regional eddies and directional reverses. B Two currents impinging upon each other near the seafloor causing deflection, producing Type 2 ripples (Fig. 3D). Local eddies may also cause current deflection. C One bottom current being superseded by another, causing reworking and modification (producing Type 3 ripples, Fig. 3F –I). D Current modification by topography (producing Type 1 ripples). Currents may be accelerated downslope, channelized, or deflected around/with topography.
